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Sludge - Wikipedia, the free encyclopedia
Sludge is a generic term for solids separated from suspension in a liquid. This 'soupy' material usually contains significant quantities of 'interstitial' water (between the solid particles). Commonl...
en.wikipedia.org/wiki/Sludge |
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The simplest, and least effective, method of treatment is to allow the undissolved solids in raw sewage to settle out of suspension forming sludge. Such primary treatment removes only one-third of the BOD and virtually none of the dissolved minerals.
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Information about neurotoxicology and sewage sludge exposure. ... Municipal Sewage Sludge : Scope of the Problem ... To evaluate the neurobehavioral effects of municipal sewage sludge in a family whose members were exposed for 8 or more years. Municipal sewage sludge, a mixture of household sewage along with industrial waste,
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Sewage sludge is piling up in Sweden. Since October 1999, farmers have refused to put the black goo on their land because they are concerned about the health consequences, even though Sweden has some of the strictest sludge standards in the world.
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On July 2, the National Research Council of the National Academy of Sciences (NAS) concluded that there may be public health risks from using processed sewage sludge as a commercial fertilizer. Approximately 60 percent of an estimated 5.6 million tons of dry sludge is used or disposed of annually in the United States.
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The company is experimenting with a method of extracting oil out of sewage sludge, Amit Mor, CEO of Israeli investing and consulting firm Eco Energy, said in an interview. Mor, who advises BioPetrol, said the extracted oil could be converted into gasoline and natural gas.
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